Electrically-propelled drive-wheel



(No Model.)

G. G. ANDERSON. ELECTRIUALLY PROPELLED DRIVE WHEEL.

No. 513,859. I Patented Jan. 30, 1894.

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UNITED STATES PATENT OFFICE.

CARI. G. ANDERSON, OF LYNN, MASSACHUSETTS.

ELECTRlCALLY-PROPELLED DRIVE-WHEEL.

SPECIFICATION forming part of Letters Patent No. 513,859, dated January30, 1894.

Application filed September 1, 1892. Serial No. 444,790. (No model.)

To to whom it may concern.-

Be it known that I, CARL G. ANDERSON, a subject of the King of Swedenand Norway, and a resident of Lynn, in the county of Essex and State ofMassachusetts, have invented new and useful Improvements in ElectricDriving-Wheels for Vehicles, of which the following, talten inconnection with the accompanying drawings, is aspecification.

This invention relates to improvements in electric driving wheels forvehicles and it is carried out as follows, reference being bad to theaccompanying drawings, wherein Figure 1 represents a side elevation ofthe wheel showing a portion of its casing removed, and Fig. 2 representsa central longitudinal section thereof.

Similar letters refer to similar parts wherever they occur on thedifferent parts of the drawings.

A represents the frame of the vehicle which may be of any suitable size,shape or construction according to the nature of the vehicle to whichthe driving wheel is to be applied. To said frame is secured a pair ofaxles B, B, arranged longitudinally in a line with each other as shown.To said shafts is secured the motor frame 0 provided with field magnetsD, D, and surrounding lield coils d, d, as is common in electric motors.Between the field magnets D, D is arranged the rotary armature E, and eis its axle which is journaled in bearings in the frame 0 as shown.

E is the commutator connected to the armature E, and E, E" are thebrushes held in contact with the said commutator and connected by meansof wires e", e to the storage battery E or other source of electricforce.

F is the rim of the wheel of which E, Eare the hubs which are looselyjournaled on the shafts B, B and may be provided with antifrictionroller bearings if so desired so as to turn freely and without muchfriction on said shafts.

'f,f are inclosing plates by means of which the rim F is connected tothe respective hubs F, E, and by means of which the electric motor isinclosed within the wheel so as to prevent dust, grit, dirt and moisturefrom reaching said inclosed motor.

To the armature shaft 6 is preferably secured a pinion e the teeth ofwhich mesh in a gear ring f secured to the interior of the wheel asshown in the drawings.

In practice I prefer to make the stationary shafts or motor supports 13,B tubular so as to enable the circuit wires 9, e" to be conductedthrough said shafts from the brushes to the storage battery as shown inFig. 2. It will thus be seen that a rotary motion is imparted to thewheel E by the rotary motion of the armature E when the circuit isclosed through the battery E This improved electric driving wheel isapplicable to vehicles of any desired construction or it may be used asan electric driving mechanism for propelling vehicles or for conveyingpower and motion for mechanical purposes other than vehicles as may bedesired without departing from the spirit of my in- Vention.

Having thus fully described the nature, construction, and operation ofmy invention, I wish to secure byLetters Patent and claim- 1. In anelectric driving wheel, the combination with the shafts B, B, upon whichsaid wheel is loosely mounted, of a stationary electric-motor arrangedwithin the wheel and secured to the shafts, and, intermediate gearingconnecting the motor and wheel whereby a rotary motion is imparted tothe latter, substantially as described.

. 2. In an electric driving wheel, the combination with the stationaryhollow shafts B, B, upon which said wheel is loosely mounted, of astationary electro-motor arranged within and inclosed by the wheel,gearing intermediate the wheel and motor, consisting of a gear ringf,secured to the wheel, and a pinion e, mounted upon the armature shaftand receiving power therefrom, said pinion adapted to mesh with thegear-ring whereby a rotary motion is imparted to the wheel,substantially as described.

8. In an electric driving wheel, the combination with the frame A, of avehicle or other device, of the hollow stationary shafts B, B, securedto said frame,awheel looselymounted on the shafts, a stationaryelectro-motor inclosed within the wheel, and secured to the shafts, a.pinion e','ca.rried by the armature shaft of said motoigand a.gean-ningf", mpnnted on the rim of the wheel, said pinion meshing withthe gear-ring whereby the wheel is 5 caused to revolve, substantiallyas, and in the manner set forth.

In testimony whereof I have signed my

